Do you have a new game that is almost finished, or even that it finished, but you are looking for where you can promote it? Here is a new service from the people that created Gamasutra and the GDC. Game Advertising Online is a service that will help give your game exposure through quality banner advertisements.
Some of their known clients include Acclaim, Stardock and Inno Games.
Read more about it at www.game-advertising-online.com.